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Infant rocking chair and driving device for driving the same

Infant rocking chair and driving device for driving the same description/claims

This application claims priority of Chinese Application No. 200720002699.0, filed on Jan. 26, 2007.

1. Field of the Invention

This invention relates to an infant rocking chair, and more particularly to a driving device for driving a seat body of an infant rocking chair to move back and forth as well as up and down.

2. Description of the Related Art

Conventional infant rocking chairs can only produce either only a back-and-forth motion or an up-and-down motion. However, a curved swinging motion in which a back-and-forth motion is combined with an up-and-down motion so as to simulate the motion usually made by a person taking care of and holding an infant in his or her arms, is able to impart greater comfort to the infant. Furthermore, conventional driving devices for driving infant rocking chairs include interconnected gears, which generate a large amount of noise during operation.

An object of this invention is to provide a driving device for driving a seat body of an infant rocking chair to reciprocate back and forth as well as up and down in such a manner that only little noise is generated, thereby resulting in infant comfort.

Another object of this invention is to provide a rocking chair that includes a seat body, which can be operated selectively in a back-and-forth motion or a curved swinging motion.

According to an aspect of this invention, a driving device for an infant rocking chair is provided. The infant rocking chair includes a seat body and a bottom seat. The driving device is adapted to drive the seat body to reciprocate relative to the bottom seat back and forth as well as up and down, and comprises:

a base adapted to be disposed between the seat body and the bottom seat;

a supporting element extending through the base and having a top end adapted to be connected to the seat body;

a first motion mechanism including a horizontal first guide path unit disposed at the bottom seat, and a first movable member disposed on the base and movable along the first guide path unit;

a second motion mechanism including a vertically varying second guide path unit disposed at the bottom seat, and a second movable member disposed fixedly on a bottom end of the supporting element and movable along the second guide path unit; and

a power mechanism for driving the first movable member and, thus, the base to reciprocate back and forth along the first guide path unit and for driving the second movable member along the second guide path unit so as to allow the supporting element to reciprocate up and down relative to the base.

According to another aspect of this invention, an infant rocking chair comprises:

a seat body;

a bottom seat;

a base adapted to be disposed between the seat body and the bottom seat;

a supporting element mounted movably on the base and having a top end adapted to be connected to the seat body;

a first motion mechanism including a first guide path unit disposed at the bottom seat, and a first movable member disposed on the base and movable along the first guide path unit; and

a second motion mechanism including a second guide path unit disposed at the bottom seat, and a second movable member disposed fixedly on a bottom end of the supporting element and movable along the second guide path unit;